On the extended double point relation in algebraic cobordism, by Alexander Nenashev

An obvious observation enables us to obtain a simpler proof of the extended double point relation stated by M. Levine and R. Pandharipande. The proof in [LP] is based on two consecutive blow ups, the first of which yields a non-smooth variety. We show that the relation can be proved by performing a single smooth blow up.


Alexander Nenashev <nenashev@gl.yorku.ca>